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Chemical Engineering Thermodynamics

Chemical Engineering Thermodynamics
If different processes are used to bring about the same chemical reaction, the enthalpy change is same for all of them. This is __________ law.

Hess's
Kirchoff's
None of these
Lavoisier and Laplace

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Chemical Engineering Thermodynamics
The equation, PV = nRT, is best obeyed by gases at

None of these
Low pressure & low temperature
High pressure & low temperature
Low pressure & high temperature

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Chemical Engineering Thermodynamics
The first law of thermodynamics is a statement of conservation of

Energy
Heat
Work
Momentum

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Chemical Engineering Thermodynamics
Efficiency of a Carnot engine working between temperatures T₁ and T₂ (T₁ < T₂) is

(T₂ - T₁)/T₂
(T₁ - T₂)/T₂
(T₁ - T₂)/T₁
(T₂ - T₁)/T₁

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Chemical Engineering Thermodynamics
The change in __________ is equal to the reversible work for compression in steady state flow process under isothermal condition.

Gibbs free energy
Helmholtz free energy
Enthalpy
Internal energy

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Chemical Engineering Thermodynamics
The expression for entropy change, ΔS = n Cp . ln (T₂/T₁), is valid for the __________ of a substance.

Cooling
Simultaneous pressure & temperature change
Both B and C
Heating

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